Longman Dictionary of Contemporary English homepage

technical support

 noun
     
Related topics: Computers
technical support also tech support [uncountable]
1TD help or information that you receive to improve a computer program or system, make it continue working, or use it correctly
2TD the department of a company that provides help with using computers:
Maybe you'd better try calling tech support.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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